<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>文件上传</title>
    <link rel="stylesheet" href="https://unpkg.com/element-ui@2.15.6/lib/theme-chalk/index.css">
    <script src="https://unpkg.com/vue/dist/vue.js"></script>
    <script src="https://unpkg.com/element-ui/lib/index.js"></script>
</head>
<body>
<div id="app">
    <el-upload
            action="/uploadFile"
            :on-preview="handlePreview"
            accept=""
            :limit="10">
        <el-button size="small" type="primary">点击上传</el-button>
        <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
    </el-upload>
</div>
</body>
<script>
    new Vue({
        el: '#app',
        methods:{
            handlePreview(file){
                window.open(file.response.url);
            }
        }

    })
</script>
</html>